A 31-year-old diabetic man has been indicted by a Boulder County grand jury on three counts of first-degree sexual assault after prosecutors allege he drugged a woman with his insulin medication after the two met at a Pearl Street bar and then raped her.

Frederick Lawrence Allen, who goes by the name Rick, also was indicted on charges of first-degree assault, two counts of second-degree assault and tampering with evidence.

According to the indictment -- which was handed down Jan. 5, but unsealed Tuesday -- Allen met the victim at the Sundown Saloon on the Pearl Street Mall last February. The two had previously met, but had never really talked to each other. During the encounter last February, Allen and the woman talked until the bar closed, at which point he offered to walk her to her nearby home.

One of the woman's roommates told police she heard someone come back to the apartment, but put earphones and music on so she would not be woken up again.

The roommate noticed the victim's door was locked at 1 p.m. the next day and did not see the victim again until 10 p.m. that night when she checked again and found her door unlocked.

The roommate told investigators the victim's room was a mess and she found the victim naked on the bed with only a bed sheet covering her, according to the indictment. She appeared to have thrown up and was sweaty and having trouble focusing.

The victim was taken to Boulder Community Hospital, where doctors said she had dangerously low blood sugar levels and was suffering from severe hypoglycemia, most likely due to an insulin injection. They also noticed signs of sexual assault as well as abrasions on her limbs.

Allen, a diabetic, told investigators he did not remember if he had his insulin with him that night, but confirmed he normally would have it with him if he was going out to the bars.

He told investigators he had sex with the victim, but that he stopped when she started getting sick, according to the indictment. He then offered to clean her bed sheets, but threw them away in a Dumpster instead.

Investigators found a note in the victim's room saying, "I will wash your sheets for you love, see ya Saturday!!"

Allen claimed he left between 4 and 6 a.m. and called a cab, but police said his phone showed no record of a call to a taxi in that time period.

Court records show Allen has an extensive criminal history, including arrests in Boulder County on charges of burglary, theft and concealing a weapon.

Allen remains in custody at the Boulder County Jail. He is scheduled for a bond hearing on Thursday.

District Attorney Stan Garnett declined to say why Allen's case was taken to the grand jury -- something of a rarity in Boulder County.

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